How to Jailbreak

Open up the Evasi0n app that you downloaded. Connect your computer to your device. If you have passcode lock enabled, go into the Settings app on your device and temporarily disable it in the General —> Passcode Lock section. (You can re-enable it after the jailbreak is complete.)

Back on your computer, click the Jailbreak button in the Evasi0n app window. It'll take awhile to upload some necessary jailbreak data, and your phone should restart during this process. Wait for Evasi0n to finish this step.

As part of the process, Evasi0n installs a temporary jailbreak app on your device. When ready, it'll prompt you to open it. Simply unlock your device, then tap on the jailbreak app icon. It'll cause the screen to flash briefly but appear to do nothing. If you look at your computer, however, you'll find the jailbreak process continues. It'll finish in a minute or so and you can close Evasi0n on your computer. Your device will need to reboot a couple of times, but when you see your lock screen the process is done. Just navigate to Cydia and enjoy your new jailbreak!